共 50 条
- [3] NORMAL SUBGROUPS OF FREE PROFINITE GROUPS MATHEMATICS OF THE USSR-IZVESTIYA, 1978, 12 (01): : 1 - 20
- [5] Free subgroups of finitely generated free profinite groups JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES, 2016, 93 : 361 - 378